Car-truck.



C. J. W. GLASEN.

' GAR TRUCK.

APPLICA AYB, 1913. 1,070,325, Patented Aug. 12,1918.

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- /Zfforney C. J. W. GLASEN.

CAR TRUCK.

APPLICATION FILED MAY 8, 191s 1,070,325, i Patented Aug.`12, 1913.

3 SHEETS-SHEET 2 C. J. W. CLASEN.

GAR TRUCK.

1913. 1,070,325, Patented Aug.12,1913.

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forney- UNITED sTATns PATENT OFFICE.'

CLAUS J. WERNER CLASEN, OE DAVENPORT, IOWA, ASSIGNOR TO THE BETTENDORF.COMPANYQ OF BETTEVNDORF, IOWA, A CORPORATION F IOWA.

CAR-TRUCK.

1 070,32 Specification of Letters Patent. Patented Aug, v12a 19,13,

Application tiled May 8, 1913. Serial No. 766,278.

To all lwhom it mag/ concern Be it known that I, CLAUS J. IVERNERCLAsnN, a citizen of the United States of America, and resident ofDavenport, Iowa, have invented a certainnew and useful Improvement inCar-Trucks, of which the following is a specification.

My invention relates to improvements in trucks for railway cars andespecially to that type of trucks in which the side frames'lncluding thetop and bottom arch bars, columns and'journal boxes are made of a singleintegral piece, and is directed more particularly to the manner ofconnecting the bolster to the truck frames with the view of greatlyincreasing the carrying capacity of the truck as a whole, withoutmaterially increasing the size or weight of its component parts. U

.The primary objectof my invention is to provide means whereby thesuperimposed loadv is carried by the truck frames at points widelyseparated and at adistance from the center thereof, Where'it Iisusuallycarried. vAnother object is to dispense with the usual springplank and provide a truck wherein its component parts are held in properand operative relation without the use of bolts or rivets.

There are other objects which as will hereinafter appear are attained bythe structure illustrated in the accompaning drawings, in which Figu'rel is a perspective view of the truck, lessythe wheels and axles, with myimprovements in place. front elevation vof improved t-ruck side frame.plan view thereof.

Fig. 4. isa plan view of the truck bolster.

Fig. 5. is a side elevation thereof. Figs. 6 and 7, 8 and 9 are side andend. views of detail parts. Fig."l0

is a perspective 'vi'ew` of the truck showing my invent-ion ina modifiedform.

Similar numerals refer to similar parts throughout the several views.

In the drawings l indicates the side frames which are preferably vmadeof cast steel and provided .with boxes 2 and columns 3. These columnstogether Wit-h the top and bottom members of the side frame form therectangular bolster' opening 3*1 for the reception of the 'ends of thebolster et which of castl steel and providedwith the'usual :at each end,forward Fig. 2. Ais aa preferred .form ofny Fig. 3. is av ynear theaxles.

integral4 journal is also preferably made center bearing 4a and sidebearings 4b. The bolster is also provided with the rectangulartransverse slots 5 near each end. wall of these slots beingrounded asshown ata. These slots are. engaged by the bolster carriers or slings 6and 6a which pass through them, their upper edge being struck on acircle coinciding with the convex surface 51 slings are four in number,two at each end of the bolster, one passing through the bolster forwardof the side frame one aft thereof. Formed integral with the lower arch bar of the side frame, ata distance from each side of the bolster openingare the spring pockets 7, in which are located the bolster springs 8.Fitted over the upper end of the springs are the spring caps 9 providedwith the laterally extending trunnions l0 forming supports for andengaging the outerends of the bolster slings 6 and 611. The trunnionsl() may be made integralpwith the spring cap 9 or a removable pin may beused.

As is clearly shown in the drawings the bolster is passed through thebolster opening in the side frames position its ends extend suilicientlybeyond each side frame to bring one of the slots 5 of the side frame andthereof, so'that when and 6a are passed the other to the rear thebolster slings 6 through the openings trunnion 10, they closely embracethe ,front and vrear sides of the truck side framesV locking the bolsteragainstv longitudinal movement, therev performing" the function of theusual bolster guilde lugs 'and making unnecessary the use of the usualspring plank.

The upper' or convex forming a bearing. These and when in proper 5 andhungon the Hanging the bolster'in thismanner on the bolster slings, theentire weight 0f the superimposed load is transferred from the ,centerof the truck frames (where it usually is carried) to points widelyseparated and The maximum carrying capacity.` of a truck frame is' thusy greatly increased withoutimaterially and proportionately increasingthe size of the parts.`

lThe present maximum carrying'capacit;r of freightl car trucks is 50tons. the growing demand for 60 andv l 70 tor. trucks, the commonpractlcewould be that and consequently the size of the truck gen- Tormeet i .of simply increasing the size of the parts erally, in doingwhich, however, the M. C. B. regulations regarding center plate heightand coupler height would be violated. Therefore to preserve the M. C. B.requirements and yet use springs of 70 ton capacity (which must be muchlarger and heavier than the former ton springs) and not approach therails closer With't-he lower side of the truck frame, nor the car bodywith the upper side, the novelty and utility of my method oftransferring the load to pointsdistant from the center of the truckframe becomes apparent. By locating the springs in the special springpockets near the axles a" much larger and heavier spring can he used. Itwould be impossible to use the same size spring under the bolster atthe. center of the truck :frame Without greatly increasing the heightand size of the frame. j

Fig. 10 shows a modified form of construction. in which, instead ofpassing the holster slings or carriers through the bolster they may bemade to' pass under it as shown at 12. When constructed in this mannerstop lugs 13 and 13 would be provided on the underside of the bolster,engaging the outer surface of the slings or carriers thus locking thebolster against longitudinal movement.

It is to be understood that side frames with removable journal boxes asWell as integral boxes could be employed Without departing from thespirit of my invention.

What. I claim as new is- 1. In a car truck, the combination with sideframes, each having a bolster opening mediate the ends thereof; abolster the ends of which extend through said openings; bolster springsseated -in said side frames on each side of said opening; bolstercarrying members supported by said springs and directly engaging saidbolster and adapted to form the sole support of the bolster and itssuperimposed load in said openings.

2. In a car truck, the Vcombination With side frames, each having abolster opening mediate the ends thereof; a bolster, the ends` of whichextend through said openings; bolster springs seated in said side frameson ,each side of said openings; combined, sole load carrying and bolstercontrolling members supported by said springs and directly engagingtheends of said bolster.

3. In a car truck,the combination with side frames, each havinga'bolster Opening mediate their ends, a bolster extending through saidopenings, and means yieldingly supported by the side frame at pointsdistant from said opening adapted to lock said side frames in operativeposition.

4f. In a car truck, the combination with side frames, each havingjournal `boxes at the ends thereof; a bolster opening mediate saidjournal boxes; load carrying .springs applied tothe said side frames ateach side of said opening; bolster supporting and guiding bars directlyengaging the bolster and resting on said load carrying springs; abolster, the ends of which pass through said bolster openings, saidsupporting bars in conjunction With said bolster adapted to lock saidside frames in operative relation.

5. In a ear truck, the combination with side frames each having journalboxes at the ends thereof; a bolster o ening mediate said journal boxes;a pair o load carrying springs on each side of said opening arrangedlongitudinally of the side frame in the plane of the web thereof;springs caps on said springs provided With'laterally extendingtrunnions; pairs of bolster supporting and guiding bars supported attheir ends by said trunnions and on both sides of said side frames; abolsterguided by and locked in operative relation to the side frames bysaid bars.

6. In a car truck, the combination With side frames each having abolster opening therein; spring seats in said side frame on each side ofsaid opening; springs on said spring seats, a bolster, the ends of Whichextend through and beyond said openings; pairs of bolster carrierssupported by said springs and directly engaging the ends et saidbolster-fore and aft the side frames.

7. In a car truck, the combination with side frames each having abolster opening therein; a'bolster, the ends of which pass through andbeyond said opening, lateral slots throu h the ends of said bolster foreand aft o the side frames and adjacent thereto; means passing throughsaid slots

